2231635981856 has 24 divisors (see below), whose sum is σ = 4412389720284. Its totient is φ = 1111029068800.

The previous prime is 2231635981837. The next prime is 2231635981867. The reversal of 2231635981856 is 6581895361322.

2231635981856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2230900704400 + 735277456 = 1493620^2 + 27116^2 .

It is a super-3 number, since 3×2231635981856³ (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2231635981795 and 2231635981804.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149646245 + ... + 149661156.

Almost surely, 2^{2231635981856} is an apocalyptic number.

It is an amenable number.

2231635981856 is a deficient number, since it is larger than the sum of its proper divisors (2180753738428).

2231635981856 is a wasteful number, since it uses less digits than its factorization.

2231635981856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299307644 (or 299307636 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 59.

The spelling of 2231635981856 in words is "two trillion, two hundred thirty-one billion, six hundred thirty-five million, nine hundred eighty-one thousand, eight hundred fifty-six".